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Finding the Fourth Proportional to 5,916.78, 8,870.49 and 2,953.70

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Solution

The fourth proportional to 5,916.78, 8,870.49 and 2,953.70 is: 4,428.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,916.78 : 8,870.49 = 2,953.70 : x
  2. Step 2: Convert to fraction form
    5,916.78/8,870.49 = 2,953.70/x
  3. Step 3: Cross multiply
    5,916.78x = 8,870.49 × 2,953.70
  4. Step 4: Simplify right side
    5,916.78x = 26,200,766.31
  5. Step 5: Solve for x
    x = 26,200,766.31/5,916.78
  6. Step 6: Final answer
    x = 4,428.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.